172 ENGLISn BOTANY. 
paucity and shortness of the hairs at the tips of the florets. The 
leaves are of a deeper green than in the three last species. 
I am unacquainted with the var. insigne of Professor Babing- 
ton's Manual, unless it be merely a luxuriant state of the ordinary 
form, such as I have gathered on Loch-na-gar ; but that has the 
leaves obovate-spathulate. 
I have adopted the name H. melanocephalum (Tausch), 
which doubtless belongs to this form, instead of restricting the 
name of J I . alpinum to this aberrant member of the group. There 
is no custom which has introduced greater confusion than that of 
applying the name properly belonging to a whole series of form? 
to one of its parts only — where this has been done, and generally 
received by botanists, of course such names ought to be retained, as 
they do not lead to confusion ; but, in the present case, it is only two 
or three British authors who use H. alpinum in the sense intended 
by Mr. Backhouse; so that their H. alpinum does not represent the 
II. alpinum of continental authors. 
Alpine Haiokwecd. 
SPECIES VII— HIE RACIUM GRACILENTUM. Back. 
Plate DCCCXXVIII. 
Sack, Mon. Hier. p. 24. Bab. Man. Brit. Bot. ed. v. p. 201. Hook. & Am. Brit. Fl. 
ed. viii. p. 219. 
Stem usually simple, rather thickly clothed with stellate down 
and black gland-tipped hairs, sparingly intermixed with long black- 
based simple hairs. Radical leaves obovate-spathulate or oblanceo- 
late-spathulate, abruptly attenuated into the petiole, obtuse; inner 
ones narrower and sub-acute ; all remotelv denticulate or serrate- 
dentate, rarely coarsely toothed, sub-glabrous or hairy on the mar- 
gins and beneath, and sometimes sparingly so even above ; stem- 
leaves 2 to 4, large ; lower one attenuated into a petiole ; the 
uppermost one strapshaped, sessile. Anthodes solitary, or rarely 
2 or 3 in a corymb, ovoid in bud. Pcriclinc rounded at the 
base. Phyllarics broad, acute, nearly black, densely clothed Avith 
rather short black and black-based simple hairs, interspersed with 
short black gland-tipped hairs ; inner ones adprcssed, the outer 
more or less lax. Florets nearly or quite glabrous externally, 
Blighl ly pilose at the tips. Styles livid-yellow. Plant green. 
Granitic and porphyritic cliffs at an elevation of 2,000 to 4,000 
feet. I have collected this species only on Loch-na-gar; but it 
occurs also on r>en-na-bourd, Cairntowl, and in Canlochen Glen. 
Scotland. Perennial. Autumn. 
